Method for preventing root-knot nematode by taking brassica crop rapes as raw materials

A technology for root-knot nematodes and Brassica spp. is applied in the field of root-knot nematode control, and can solve the problems of unstable control effect of biological agents, high control cost, and unstable effect.

Inactive Publication Date: 2013-08-21
卢志军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are very few biological agents currently available for the control of root-knot nematodes, mainly Verticillium chlamydia, Paecilomyces lilacinus, Bacillus, etc., and the effect is not stable enough
Biological fumigation is a hot spot in the research of methyl bromide replacement technology in recent years, but the progress is slow. At present, there is no commercial preparation officially registered in China.
The existing medicament varieties are limited, and the control cost is high, especially the application cost of fumigant medicament control is more than 1,000 yuan per mu, and the control effect of biological medicament is unstable. The technical measures are of great significance to root-knot nematode control

Method used

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  • Method for preventing root-knot nematode by taking brassica crop rapes as raw materials
  • Method for preventing root-knot nematode by taking brassica crop rapes as raw materials
  • Method for preventing root-knot nematode by taking brassica crop rapes as raw materials

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Effect test

Embodiment 1

[0021] A method for controlling root-knot nematodes using Brassica crop rape as a raw material, comprising the steps of:

[0022] A. Sow Brassicaceae Brassica crop rape in the late stage of spring vegetable production, within 1-2 months before the end of production or pulling seedlings. The specific sowing time can be determined according to the vegetable production period, without affecting vegetable production. Sow densely between plants, rows, or ridges, with a plant spacing of 50 mm or 80 mm or 100 mm or 120 mm or 150 mm, and choose broadcast or drill according to the plant type and growth size of different crops;

[0023] B. In July or August or September, when the high temperature season is harvested, the diseased vegetable residues in the field should be cleaned up in time and treated in a centralized and harmless manner. At the same time, the soil humidity in the field should be kept at 45% or 50% or 55% or 60%;

[0024] C. Use a rotary tiller to crush the entire rape...

Embodiment 2

[0031] In the later stage of spring tomato or sweet pepper or pepper or eggplant production, brassicaceae Brassica crop rape is sown within 1-2 months before the end of production or pulling seedlings. Or densely sow between ridges, with a plant spacing of 50mm or 80mm or 100mm or 120mm or 150mm, for sowing or drilling; in June, July or August, after harvesting in the high temperature season, clean up the vegetable residues in the field in time and thoroughly, and concentrate them without At the same time, through field management, the soil moisture in the field was kept at 45% or 50% or 55% or 60%; the whole rape plant was crushed on the spot with a rotary tiller, and directly deep-plowed and mixed to 300 mm or 350 mm or 400mm soil plowing layer, break up the soil mass above 10mm to make the soil loose, uniform and flat; if the growth of rapeseed is short and the plant biomass is small, you can add 10mm or 15mm or 20mm of crushed rapeseed straw or crushed rapeseed cake, And p...

Embodiment 3

[0033] In the late stage of watermelon, melon or cucumber production in spring, brassicaceae Brassica crop rape is sown within 1-2 months before the end of production or pulling seedlings. The specific sowing time can be determined according to the production period, and the production of melons and fruits will not be affected. Densely sow between plants, rows, or ridges, with a plant spacing of 80mm or 100mm or 120mm or 150mm, and choose to sow or drill according to the plant type and growth size of different crops; in June or July or August, when the high temperature season is harvested, Thoroughly clean up the diseased vegetable residues in the field in a timely manner, and centralize and harmlessly treat them. At the same time, maintain the soil moisture in the field at 45% or 50% or 55% or 60% through field management; Grinding, deep turning and mixing until 300mm or 350mm or 400mm soil tillage layer, breaking up the soil mass over 10mm to make the soil loose, uniform and ...

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Abstract

The invention relates to a method for biologically preventing root-knot nematode by taking brassica crop rapes as raw materials. The rapes are taken as the raw materials and are uniformly turned over to a plowing layer after crushed on site during growth, and plastic films for covering are used for high-temperature treatment for 15-20 days, so that the root-knot nematode is killed. The rapes internally contain a large quantity of thioglycosides, the thioglycosides can be decomposed into isothiocyanate substances under the action of self-contained myrosinase under the condition of a certain temperature and humidity, and the root-knot nematode is effectively killed. Besides, the ground temperature can be increased by the aid of the covering films, decomposition of straws is promoted, and the root-knot nematode can also be directly killed. Compared with an existing prevention method, the method has the advantages that natural plants are completely taken as the raw materials, chemical pesticides are completely omitted, energy consumption is low, the method conforms to the low-carbon concept and is applicable to wide area, simple in operation, low in service cost and remarkable in comprehensive benefit, the root-knot nematode can be effectively prevented, soil fertility and a soil structure can be improved, and high economic, social and ecological benefits are achieved.

Description

technical field [0001] The invention relates to a method for controlling root-knot nematodes by using Brassica crop rape as a raw material. technical background [0002] Root-knot nematode has a wide range of hosts, serious damage, and difficult control. It is a worldwide disease. According to statistics, the annual economic loss caused by nematodes in the world is more than 50 billion U.S. dollars, and it is about 3.5 billion yuan in my country every year. In recent years, with the continuous increase of the area of ​​protected agriculture in my country, root-knot nematode diseases have become more and more serious, especially in the protected vegetable production areas. Since the last century, the control of root-knot nematode diseases has been mainly based on chemical control, mainly including chemical control and biological control, and chemical control is the main method. At present, there are very few types of nematode control agents officially registered. There are m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G13/00
Inventor 卢志军郑建秋张群峰郑翔原铠姚丹丹
Owner 卢志军
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